If there's a hole in each cover,you can run a PCV in each cover and T the hoses together before they go into the carb. I did that on my 355 and it works fine-runs great,doesn't leak,doesn't burn oil,and looks cool,too.
Some aftermarket intakes are set up for the filler tube;if you only have one place for a vent you might think of drilling out the hole and putting a vent/filler tube in-they're high enough they often can vent without throwing oil over the top of the engine like the vented valve cover cap is prone to do.
Speed


1954 GMC 350
1957 GMC 1/2 ton
1962 Chevy C-30
1952 Chevy 6400 dump bed project truck
'98 Harley FLSTC
'66 Pontiac Catalina
'76 Chevy 1 ton Duallie
'84 Bronco II
'78 Dodge W-200
'81 Toyota 4X4 truck